Finding the Fourth Proportional to 261,065.46, 391,709.82 and 109,297.98

Step by Step Solution

1. Step 1: Write the proportion equation
   261,065.46 : 391,709.82 = 109,297.98 : x
2. Step 2: Convert to fraction form
   261,065.46/391,709.82 = 109,297.98/x
3. Step 3: Cross multiply
   261,065.46x = 391,709.82 × 109,297.98
4. Step 4: Simplify right side
   261,065.46x = 42,813,092,072.16
5. Step 5: Solve for x
   x = 42,813,092,072.16/261,065.46
6. Step 6: Final answer
   x = 163,993.71